"""Alembic环境配置"""
from logging.config import fileConfig
from sqlalchemy import engine_from_config
from sqlalchemy import pool
from alembic import context
import os
import sys

# 添加项目根目录到路径
sys.path.insert(0, os.path.dirname(os.path.dirname(__file__)))

from app.database import Base
from app.config import settings

# 导入所有模型（确保Alembic能检测到）
from app.models import (
    ScanTask,
    ScanRecord,
    Issue,
    FieldConfig,
    ConfirmHistory,
    ScanRecordExtension,
    ScanIssueExtension,
)

# this is the Alembic Config object
config = context.config

# 从环境变量或配置文件获取数据库URL
config.set_main_option("sqlalchemy.url", settings.DATABASE_URL)

# Interpret the config file for Python logging.
if config.config_file_name is not None:
    fileConfig(config.config_file_name)

# add your model's MetaData object here
target_metadata = Base.metadata


def run_migrations_offline() -> None:
    """Run migrations in 'offline' mode."""
    url = config.get_main_option("sqlalchemy.url")
    context.configure(
        url=url,
        target_metadata=target_metadata,
        literal_binds=True,
        dialect_opts={"paramstyle": "named"},
    )

    with context.begin_transaction():
        context.run_migrations()


def run_migrations_online() -> None:
    """Run migrations in 'online' mode."""
    connectable = engine_from_config(
        config.get_section(config.config_ini_section, {}),
        prefix="sqlalchemy.",
        poolclass=pool.NullPool,
    )

    with connectable.connect() as connection:
        context.configure(
            connection=connection, target_metadata=target_metadata
        )

        with context.begin_transaction():
            context.run_migrations()


if context.is_offline_mode():
    run_migrations_offline()
else:
    run_migrations_online()

